If any user accounts have a username which is not a custom domain then go into the account and update the username and save the changes. Part 2 – Check all user accounts and groups have a logon domainĬheck each user account has one of your custom domains included in the user name and not the domain. Add all of the custom domains you have listed in the domains section in Office 365 with exception of the domain. This will allow you to add the UPN suffixes. Right click on the root and click on properties.

Log into a domain controller and open Active Directory Domains and Trusts. These will be added as UPN suffixes into active directory so that users can have the same username in the local AD as they do in Office 365 Make a list of all of the custom domains you are using not including the default. Log in to the portal as a global administrator and navigate to settings then domains. Part 1 – Add UPN Suffixes into Active Directory You can either watch the video here or scroll down to read the blog post 🙂 Usually away from small business server or another type of email system but what do you need to do if there is no existing domain? What if you work in a workgroup and users use Office365 but now you need to setup a domain infrastructure and synchronise that local domain with Office365, what do we need to do? Normally you would have a network setup in a domain and you need to migrate into Office365.

How to Sync an Existing Office365 Tenant into a New Active Directory Domain

How to sync office 365 groups with ad